Ultra Compact Multifunction Counter / Tachometer - Series H7CX H57CX series of ultra-compact preset multi function counters/tachometers provide complete functionality in a wide range of applications.Features and Benefits Features and Benefits • Three-colour display value red, green or orange (except H7CX-A11 models) • Increased character height and display segments (10 mm) • Simple operation using UP/DOWN keys for digits • Twin counter-mode • Reliable - setting upper limit restricts the set time and helps prevent incorrect settings • Service Life Notification - the number of times that the control output turns ON is counted and an alarm is displayed when a preset count is exceeded • Input contact NPN or PNP